CN104624729B - Slab straightener roll-bending device - Google Patents

Abstract

A kind of slab straightener roll-bending device, there is between two pedestals on chamber the working roll of level, the two ends of every working roll are connected with the working roll bearing block internal bearings in pedestal respectively, chamber is set on two pedestals, there is in chamber the segmentation backing roll the most corresponding with every working roll, the two ends of every section of backing roll are connected with the back-up chock internal bearings in chamber respectively, also include the Wedge mechanism driving above-mentioned every section of backing roll to move up and down, drive the actuating unit of described Wedge mechanism, it is capable of the backing roll balanced controls that every section of backing roll resets and the working roll balanced controls being capable of working roll reset, thus realize every section of backing roll and complete roller and the adjustment of the roller that inclines with working roll.The present invention compared with prior art has that integral rigidity is strong, weight is little, reduces production cost, the advantage such as installs and easily manufactured.

Description

Slab straightener roll-bending device

Present disclosure relates to the operating mechanism of a kind of straightener, particularly relates to a kind of plate-straightening machine Roll-bending device.

The fields such as the manufacture of background technology plant equipment, large ship and offshore platform manufacture are to high-strength plank Demand is increasing, and the plate shape precision required is more and more higher, and high-strength plank is producing, and stores Various flatness defect can be produced unavoidably with transport has.By the aligning of high-strength plank straightener, The defect of above-mentioned generation can be reduced or eliminated.Roll leveller has continuously production, the advantage that efficiency is high, But easily make straightening operation roller produce amount of deflection and flattening using roll leveller aligning high-strength plank when Phenomenon, causes leveling effect poor, it is impossible to eliminate horizontal flatness defect, it is therefore desirable to according to operating mode before aligning Straightening operation roller is carried out reverse pre-bending, i.e. roller, and a certain degree of roller that inclines adjusts.At present at wide plate In straightener, the roller technology of many employings is: straightener upper roller system chamber and pressure block are divided into left and right two parts, There is pin joint at middle part, and hydraulic cylinder carries out roller by eccentric shaft and this pin joint to upper roller system.But this technology Structure complicated, upper chamber is divided into two parts and causes the reduction of strength and stiffness, and block is bulky causes in pressure Frame is too high, thus Stiffness, and top backing up roll is necessary for even number section, and for a few thing roller body of roll relatively Short straightener is limited the situation that top backing up roll may be odd number section that exists, and hydraulic system by bulk Cost is high.

Summary of the invention it is an object of the invention to provide one, and integral rigidity is strong, weight is little, reduces production cost, Install and easily manufactured slab straightener roll-bending device.

The present invention is mainly capable of the roller of the slab working roller of straightening machine of segmentation backing roll supporting and the roller that inclines Adjusting, concrete technical scheme is as follows:

Pedestal, chamber, backing roll, back-up chock, working roll and work are the invention mainly comprises Roll bearing seat, has the working roll of level between described two pedestals, the two ends of every working roll respectively with pedestal In working roll bearing block internal bearings be connected, described two pedestals set the chamber being connected as a single entity with it, chamber Inside there is the segmentation backing roll the most corresponding with every working roll, the two ends of every section of backing roll respectively with in chamber Back-up chock internal bearings be connected；Present invention additionally comprises the above-mentioned every section of backing roll of driving to move up and down Wedge mechanism, drive the actuating unit of described Wedge mechanism, it is possible to realize the supporting that every section of backing roll resets Roller balanced controls and be capable of the working roll balanced controls that working roll resets, thus realize every section of backing roll Roller and the adjustment of the roller that inclines is completed with working roll.

Described Wedge mechanism includes wedge and lower wedge, and upper wedge is setting up and down with lower wedge, upper wedge Upper surface be plane, the end face of the internal die cavity of this plane and described chamber is flexibly connected, described lower wedge Lower surface is plane, and the back-up chock upper surface of the corresponding bottom of this plane is fixing to be connected, described under The upper surface of wedge has at least 1 section of same angled ramp all extended, the lower surface of described upper wedge to side Have with the inclined-plane quantity on lower wedge, angle all with inclined-plane, the inclined-plane of the inclined-plane of upper wedge and lower wedge Correspondence connects, and described upper wedge has the preformed hole of bar shaped.

Described actuating unit includes servomotor, shaft coupling, screw-threaded shaft elevator and push rod, wherein servo electricity Machine is arranged on motor fixing frame, and motor fixing frame is bolted on the outer wall of chamber, described servo The outfan of motor is connected with the input of shaft coupling, the outfan of shaft coupling and the input of screw-threaded shaft elevator Being connected, described screw-threaded shaft elevator is arranged on elevator base, and this elevator base is bolted on case On the outer wall of box, the leading screw of described screw-threaded shaft elevator in being horizontally disposed with, feed screw nut thereon by bolt with The putting back-end of its front end is connected, and the end of leading screw is stretched in the centre bore within push rod, described push rod front end It is together by a threaded connection through the through hole on chamber with upper wedge.

Described backing roll balanced controls include regulating bolt, spring, spring base and pad, by described chamber Upper surface set the slotted eye of opening upwards, the screw rod end of described regulation bolt is stretched into by slotted eye and wears successively Cross the preformed hole on case lid and upper wedge, lower wedge is together by a threaded connection with back-up chock, institute Having the spring base being enclosed within screw rod and pad in stating slotted eye, be socketed spring outside spring base, this spring is by bullet The upper end of spring abutment withstands on the head lower end of regulation bolt, at the bottom of the hole withstanding on described slotted eye of the lower end of pad.

Described working roll balanced controls include balancing pull rod, nut, spring, spring base and pad, described The upper and lower end of balancing pull rod is all threaded, and screw thread and work are passed through through base interior through hole in its lower end Roll bearing seat is fixed together, and the upper end of balancing pull rod connects two nuts, and described balancing pull rod is socketed Spring base and pad, be socketed spring outside described spring base, and the upper end of spring base is withstood on nut by this spring Lower end, withstands on the upper surface of pedestal by pad.

The present invention compared with prior art has the advantage that

Bending roller force is driven screw-threaded shaft elevator to promote Wedge mechanism by servomotor, reduces making of roll-bending device Valency, Cam device uses stagewise, reduces the spatial altitude of Cam device, manufacture of the present invention and installation letter Single, it is possible to decrease the height of the bulky pressure block coordinated with chamber, thus reduce whole straightener column Length, increase the integral rigidity of straightener, and overall weight alleviate, reduce the cost of complete machine, separately Outward, entirety roller power of the present invention is less, greatly reduces production cost.

Description of drawings 1 is the three-dimensional simplified schematic diagram of the present invention.

Fig. 2 is that the master of the present invention regards part sectioned view.

Fig. 3 is the right pseudosection of the present invention.

Fig. 4 is I zoomed-in view of Fig. 3.

Fig. 5 is II zoomed-in view of Fig. 3.

Fig. 6 is III zoomed-in view of Fig. 2.

Just combine accompanying drawing below detailed description of the invention the present invention is elaborated

As shown in Figure 1, Figure 2, shown in Fig. 3 and Fig. 4, there is the working roll 6 of level, often between two pedestals 22 The two ends of root working roll are connected with working roll bearing block 12 internal bearings 11 in pedestal respectively, described two bases Set chamber 1 on Zuo, there is in chamber the segmentation backing roll 9 the most corresponding with every working roll, every section of backing roll Two ends be connected with back-up chock 7 internal bearings 8 in chamber respectively, above-mentioned every section of backing roll upper Lower motion is driven by the Wedge mechanism 23 at the back-up chock top being separately positioned on its two ends, described wedge Mechanism includes wedge 14 and lower wedge 15, and upper wedge is setting up and down with lower wedge, the upper surface of upper wedge For plane, the end face of this plane die cavity internal with described chamber is flexibly connected, and the lower surface of described lower wedge is Plane, the back-up chock upper surface of the corresponding bottom of this plane is connected by screw together, described The upper surface of lower wedge have 3 sections all to side extend same angle (0 °～5 °) inclined-planes, described upper tiltedly The lower surface of wedge have 3 sections respectively with the inclined-plane on lower wedge with the inclined-plane of angle, 3 sections of inclined-planes of upper wedge Corresponding with 3 sections of inclined-planes of lower wedge connect, thus realize upper wedge horizontal movement and drive lower wedge to move up and down, There is on described upper wedge the preformed hole 24 of bar shaped.The horizontal movement of described upper wedge is by being arranged on chamber Actuating unit 25 drives, and described actuating unit includes servomotor, shaft coupling, screw-threaded shaft elevator and push rod, Wherein servomotor 2 is arranged on motor fixing frame 3, and motor fixing frame is bolted on outside chamber On wall, the outfan of described servomotor is connected with the input of shaft coupling 4, the outfan of shaft coupling and silk The input of thick stick elevator 21 is connected, and described screw-threaded shaft elevator is arranged on elevator base 5, this elevator Base is bolted on the outer wall of chamber, the leading screw 18 of described screw-threaded shaft elevator in being horizontally disposed with, its On feed screw nut 20 be connected with the putting back-end 17 of its front end by bolt 19, the end of leading screw is stretched into and is pushed away In centre bore within bar, described push rod front end is threaded connection through the through hole 26 on chamber with upper wedge Together, thus drive upper wedge to move horizontally and every section of backing roll moves up and down.Described every section of backing roll Reset realized by two groups of backing roll balanced controls 16.

As shown in Figure 3 and Figure 5, often group backing roll balanced controls 16 include regulate bolt 27, spring 29, Spring base 28 and pad 30, set the slotted eye 31 of opening upwards, described tune by the upper surface of described chamber 1 Joint bolt screw rod end stretched into by slotted eye and sequentially passed through the preformed hole 24 on case lid and upper wedge 14, under Wedge 15 is together by a threaded connection with back-up chock 7, has and be enclosed within screw rod in described slotted eye Spring base and pad, be socketed spring outside spring base, the upper end of spring base is withstood on regulation bolt by this spring Head lower end, at the bottom of the hole withstanding on described slotted eye of the lower end of pad.

As shown in Figure 2 and Figure 6, the reset of described working roll is by being separately positioned on each working roll two ends Working roll balanced controls 13 realize, and the described working roll balanced controls often held include balancing pull rod 36, nut 32, spring 34, spring base 33 and pad 35, the upper and lower end of described balancing pull rod is all threaded, Its lower end is fixed together with working roll bearing block 12 through pedestal 22 interior bone 37 by screw thread, balance The upper end of pull bar connects two nuts, and described balancing pull rod is socketed spring base and pad, described spring Seat is outer is socketed spring, and the upper end of spring base is withstood on the lower end of nut by this spring, and pad withstands on the upper of pedestal End face, regulates working roll equilibrant with the position by change nut.

During work, screw-threaded shaft elevator 21 is rotating threaded shaft under the drive of servomotor 2, and leading screw passes through screw thread pair Driving feed screw nut 20 to move horizontally, feed screw nut 20 promotes upper wedge 14 to do water by push rod 17 again Translation is dynamic, and due to the existence on inclined-plane, lower wedge 15 moves up and down, when upper wedge 14 is transported inside chamber Time dynamic, lower wedge 15 moves downward, and promotes back-up chock 7 to move downward, thus backing roll 9 also to Lower motion；When upper wedge 14 moves out, under the effect of backing roll balanced controls 16, support roll shaft Bearing 7 and lower wedge 15 move upward, and this section of backing roll 9 moves up to reset simultaneously.When backing roll 9 When moving downward, the working roll 6 of this section of backing roll supporting, by downward extruding force, moves downward, when propping up When runner 9 moves upward, working roll 6 moves upward under the effect of working roll balanced controls 13, with supporting Roller 9 is close to reset.Above-mentioned push rod 17 nose threads rotation direction and the rotation direction phase of leading screw 18 in screw-threaded shaft elevator 21 Instead, can avoid advance on wedge 14 time push rod 17 and upper wedge 14 between screw thread occur loosen, it addition, Preformed hole 24 size on upper wedge 14 determines according to the displacement of upper wedge, it is ensured that in moving process Regulation bolt 27 does not results in the stuck of wedge.

The size of above-mentioned Wedge mechanism adjustment amount with the relation of servomotor corner is:

$\mathrm{\σ}=\frac{e}{2\mathrm{\πi}}\mathrm{\ω}\tan \mathrm{\α}$

Wherein: the displacement (mm) of wedge vertical direction under σ

The angle that ω servomotor is rotated

The leading screw pitch (mm) of e screw-threaded shaft elevator

The speed reducing ratio of i screw-threaded shaft elevator

α wedge angle

The wedge angle of above-mentioned upper wedge 14 and lower wedge 15 is respectively less than 5 °, it is ensured that in violent vibrations Under the conditions of self-locking, two wedges use segmented version, both roller can be made to fill under less wedge angle conditions Put satisfied certain adjustment amount, the whole height of two wedges can be reduced again, thus reduce straightener upper roller system The degree of depth of chamber 1 die cavity, increases the intensity of chamber.

Above-mentioned straightener roll-bending device is applicable in slab and the special heavy plate straightener of segmentation supporting, assembling Often arranging on back-up chock, the most often row's backing roll both can level move up and down, it is also possible to The distance that two ends move up and down is different, makes backing roll exist to tilt, and the Wedge mechanism on different bearing blocks passes through Cooperate, it is possible to achieve working roll in various degree the most curved, recurvation and the roller that inclines adjust.

Adjustment process is to adjust under off-line state, and the thrust of screw-threaded shaft elevator 21 is mainly used to overcome supporting to roll out Frictional force between weighing apparatus mechanism 16 and the spring force of working roll balanced controls 13 and two wedges, screw-threaded shaft elevator Lifting force should meet:

$F>\frac{\mathrm{\μ}\cos \mathrm{\α}+\sin \mathrm{\α}}{\cos \mathrm{\α}-\mathrm{\μ}\sin \mathrm{\α}}(T_b+T_w)$

Wherein: the lifting force (N) of F screw-threaded shaft elevator；

T_bThe spring force (N) of backing roll balance；

T_wThe spring force (N) of working roll balance；

Coefficient of friction between μ wedge；

The screw travel of screw-threaded shaft elevator 21 should meet:

L>hcotα

Wherein: the screw travel (mm) of L screw-threaded shaft elevator；

H Wedge mechanism maximum adjustment amount (mm)； Servomotor 2 rotating speed should meet:

$n>\frac{60\mathrm{iv}}{e\tan \mathrm{\α}}$

N servomotor rotating speed (r/min)；

The longitudinally adjusted speed (mm/s) of v Wedge mechanism； The moment of torsion of servomotor 2 should meet:

$N>\frac{e(\mathrm{\μ}\cos \mathrm{\α}+\sin \mathrm{\α})}{2\mathrm{\πi\η}(\cos \mathrm{\α}-\mathrm{\μ}\sin \mathrm{\α})}(T_b+T_w)$

N servomotor output moment of torsion (N m)；

The transmission efficiency of η screw-threaded shaft elevator；

The power of servomotor 2 should meet:

$P>\frac{v\cot \mathrm{\α}(\mathrm{\μ}\cos \mathrm{\α}+\sin \mathrm{\α})}{\mathrm{\η}(\cos \mathrm{\α}-\mathrm{\μ}\sin \mathrm{\α})}(T_b+T_w)$

P servomotor power (kw).

Claims (2)

1. a slab straightener roll-bending device, including pedestal, chamber, backing roll, back-up chock, working roll and working roll bearing block, there is between described pedestal the working roll of level, the two ends of every working roll are connected with the working roll bearing block internal bearings in pedestal respectively, the chamber being connected as a single entity with it is set on described pedestal, there is in chamber the segmentation backing roll the most corresponding with every working roll, the two ends of every section of backing roll are connected with the back-up chock internal bearings in chamber respectively, also include the Wedge mechanism driving above-mentioned every section of backing roll to move up and down, drive the actuating unit of described Wedge mechanism, it is capable of the backing roll balanced controls that every section of backing roll resets and the working roll balanced controls being capable of working roll reset, thus realize every section of backing roll and complete roller and the adjustment of the roller that inclines with working roll；Described Wedge mechanism includes wedge and lower wedge, upper wedge is setting up and down with lower wedge, the upper surface of upper wedge is plane, the end face of this plane die cavity internal with described chamber is flexibly connected, the lower surface of described lower wedge is plane, the back-up chock upper surface of the corresponding bottom of this plane is fixing to be connected, the upper surface of described lower wedge has at least 1 section of same angled ramp all extended to side, the lower surface of described upper wedge has and the inclined-plane quantity on lower wedge, angle all with inclined-plane, the inclined-plane of upper wedge is corresponding with the inclined-plane of lower wedge to connect, there is on described upper wedge the preformed hole of bar shaped；Described actuating unit includes servomotor, shaft coupling, screw-threaded shaft elevator and push rod, wherein servomotor is arranged on motor fixing frame, motor fixing frame is bolted on the outer wall of chamber, the outfan of described servomotor is connected with the input of shaft coupling, the outfan of shaft coupling is connected with the input of screw-threaded shaft elevator, described screw-threaded shaft elevator is arranged on elevator base, this elevator base is bolted on the outer wall of chamber, the leading screw of described screw-threaded shaft elevator is in being horizontally disposed with, feed screw nut thereon is connected with the putting back-end of its front end by bolt, the end of leading screw is stretched in the centre bore within push rod, described push rod front end is together by a threaded connection through the through hole on chamber with upper wedge；It is characterized in that: often group backing roll balanced controls include regulating bolt, spring, spring base and pad, the slotted eye of opening upwards is set by the upper surface of described chamber, the preformed hole on case lid and upper wedge is stretched into by slotted eye and is sequentially passed through in the screw rod end of described regulation bolt, lower wedge is together by a threaded connection with back-up chock, there is in described slotted eye the spring base being enclosed within screw rod and pad, spring it is socketed outside spring base, the upper end of spring base is withstood on the head lower end of regulation bolt by this spring, is withstood on the lower end of pad at the bottom of the hole of described slotted eye.

Slab straightener roll-bending device the most according to claim 1, it is characterized in that: the working roll balanced controls often held include balancing pull rod, nut, spring, spring base and pad, the upper and lower end of described balancing pull rod is all threaded, its lower end is fixed together with working roll bearing block through base interior through hole by screw thread, the upper end of balancing pull rod connects two nuts, spring base and pad it is socketed on described balancing pull rod, it is socketed spring outside described spring base, the upper end of spring base is withstood on the lower end of nut by this spring, and pad withstands on the upper surface of pedestal.